Window regulator



Ailg- 1v1, 1931 s.w. NICHOLSON 1,818,542 v WINDOWA- REGULATOR Filed Aprily 5, 1926 Patented Aug. 11, 1931- V UNITE-DFSTATEAS,

PAT1:Nrori-lcsjg STANLEY W. NICHOLSON, or TOLEDO, OHIO, AssIG'IIORj,fr0l THE DURA COMPANY, or

' l' TOLEDO, OHIO, A CORPORATION or OHIO -f "WINDOW REGULATOR Application fuea April 5, 1926. serial No.- 99,926.,r

`The invention relates to Window regulators and refersmoreparticularly to that type of vvindovsT regualtor having apivotal, lifter arm for actuating a Window. 4Someof the 5 objectsof the invention are the manufacture of-a lifter arm which may be formed of com-y paratively light gage sheetv metal and which is yso constructed that it effectively f resists both bending and tvvisting stresses and the 1'@ forming of a gear segmentrigidly secured to the lifter arm for angularly moving theY same by meansof an arcuate rack and the locating of the ends of this rack relative to the lifter yarm by means ofthe reinforcing 15 means for the lifter arm. vt Other objects of the invention reside in the novel features of construction and combinationsand arrangements of parts as more fully hereinafter set forth.

In the drawings Figure 1 is an interior side elevation of a portion of a vehicle doorhaving applied thereto a Window regulator embodying my invention;

Figures 2 and 3 are cross sections on the .lines 22 and 8-3, respectively, of Figure 1. The vvindovv regulator embodying my invention is shown in the present instance upon the vehicle door 1 having the o ening 2 in 3:52 its upper portion and the cham er 3 in it-s` lower portion for receiving the window 4 When lowered from a position closing the opening.

For the purpose of reducing the cost of ,35X manufacture of the Window regulator, the

mounting plate 5, the pivotal lifter arm 6 and the gear segment 7 are formed of stampings. The mounting plate, as shown, has the body 8 which is laterally spaced from the 140.."v sheet steel lock board 9 and extends substantially parallel thereto. At the upper end of this body there are the legs 10 which terminate in the tongues 11 having the laterally spaced inner and outer portions 12 and13 for screwl extending ythrough the lock board and ,Y e y threaded `into the spacer for securing the' mounting plate to the lock board and placing the mounting plate under stress.

The lifter arm 6 is pivotally mounted near its innerend upon the mounting plate and is suitably connected at its outer end to the Window. For reinforcing the lifter arm against' both bending and twisting stresses sok that this lifter arm may be made ofy relatively; lightV gage sheet'metal, I have provided the ribs 17 and y18 which extend `longitudinally of the lifter arm and project laterally therefrom to'-` Ward themounting plate. The rib 17 is located substantially centrally of the lifter arm and is Vin the nature -of a bead While the rib 1,8

' is .located at 1the lower edge -of the lifterA afrmfanol is in the nature of aflange.

For

These bosses arel cenisin the nature of a pin 21 having the shoulderedf'portion 22 located in the recess formedV by the-boss' 20 and bearing against'the inner side of this boss. This pin also has a shouldered portion locatedl inthe recess formed bythe boss 19 and bearing against the outerv side of this boss to thereby secure ythe. lifter from :rotation relative to the lifter arm,jI formthe recesses 23 in the boss 19 and communicating with the central opening therein arm to themountingfplate. Tolockthe pin,

and form -projectionsfupon the outer endof l the pin for engaging these recesses.` Both the shouldered portion and the projections upon' the outer end of the pin are` formed by swaging the pin at peripherally spaced points 24. With this arrangement, the pin rotates in thek mounting plateA and is Xe'dly securedy to the lifter arm.' 25 isthe counterbalancing spring having oneend secured tothe mounting plate and the other end secured to the pin asby extending through a transverse slot 26'in its f Y inner end. f v'Ihevgear segment 7 is -in the nature of an` arcuate rack Whichmay be4 formed froma fiat sheet metal strip by curving the strip and then forming teeth in its outer edge by a suitable coining operation. The ends of this arcuate rack are rigidly secured to the lifter arm by suitable means such as spot Welding, these ends being Yso located upon the `lifter arm that the teeth of the rack are concentric with the axis ot' the pivot for the lifter arm. To locate the ends of the rack and at the same time assist in rigidly securing the same to thel lifter arm, I make use of the ribs 17 and 18 of the/lifter arm. As shown, the rib 18 abuts against one end of the rack While the rib I7 abuts against the other end. In addition to locating the rack, the ribs also assist in liolding the teeth of the rack against the teeth of gear segment and more speciiically the arcu-V ate rack, which is connected to the lifter arm and additionally serves to hold the teeth of this gear segment or arcuate rack from movement away from the teeth of the driving pinion, In addition to these features, it will be seen that I have provided a novel means for pivotally connecting the lifter arm to the mounting plate and rigidly securing the pivot to one of the members. Y

What I claim as my invention is:

1. In ay Window regulator, the combination with a gear segment, of a pivotal lifter arm rigidly secured to said segment andV means for reinforcing said arm against bend-V ing and twisting stresses and for locating said segment.

2. In a Window regulator, the combination With a sheet metal arcuate rack, of a pivotal sheet metal lifter arm rigidly secured to the` ends of said rack and means for reinforcing said arm against bending and twist-ing' stresses, including a centrally located longitudinal rib and a second longitudinal rib at an edge of the arm, each of said ribs llocating an end of said rack.

, 3. In a Winow regulator, the combinati-on rigidly secured to the ends oi said rack :and means upon said arm for remforeing the same against bending and twisting stresses,

said means comprising ribs extending Slater-y ally from said arm in the same direction, one ofsaild ribs being centrally located and locat ing an end of said rack relative to said arm and the other of said ribs being located at the loyveredge of said arm and locating the opposite end of said rack.

,4. In a Widow regulator, the combination with a sheet metal mounting plate, of a sheet metal litter arm pivotally mounted upon said plate, a sheet metal arcuate .rack rigidly secured at its ends to said lifter arm, bosses upon :said litter .arm and mounting plate and extending toward and bearing `against each other., a pivot extending through said bosses and rigidly secured to one and rotatably secured to the other, and ribs upon said litter arm and locating the ends of said rack.

5. In a Window regulator, the combination with a sheet metal mounting plate, of a pivotalsheet metal lifter arm, apertured bosses upon said mounting plate and litter arm extending toward and bearing against each other, one of said bosses having recesses communicating with its aperture and a pin eX- tending through the .apertures of said bosses for pivotally connecting said litter-arm 'to said mounting plate, said pin having portions extending into the recesses for nonrotatably securing said pin to said member having the recesses.

In testimony whereof I aix my signature.

STANLEY W. NICHOLSGN.

f with an arcuate rack, `of a pivotal lifter arm 

